|
gptkbp:instance_of
|
gptkb:isotope
|
|
gptkbp:bfsLayer
|
6
|
|
gptkbp:bfsParent
|
gptkb:promethium
|
|
gptkbp:application
|
nuclear medicine
research in nuclear physics
|
|
gptkbp:average_temperature
|
gptkb:public_square
|
|
gptkbp:block
|
f-block
|
|
gptkbp:category
|
rare earth element
|
|
gptkbp:color
|
silvery-white
|
|
gptkbp:combatants
|
8.5 Me V
|
|
gptkbp:composed_of
|
neutron capture
|
|
gptkbp:cooling_system
|
12.5 W/(m· K)
|
|
gptkbp:discovered_by
|
gptkb:Glenn_T._Seaborg
|
|
gptkbp:dissolved
|
insoluble
|
|
gptkbp:electronegativity
|
1.1 (Pauling scale)
[ Xe] 6s² 4f⁵
|
|
gptkbp:environmental_impact
|
low due to short half-life
|
|
gptkbp:financial_performance
|
gptkb:theorem
|
|
gptkbp:historical_period
|
gptkb:6
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Pm-141
|
|
gptkbp:isotopes
|
gptkb:Nd-143
61
Pm-143
Pm-145
Sm-143
only one isotope known
|
|
gptkbp:lifespan
|
54.1 hours
|
|
gptkbp:market
|
limited
|
|
gptkbp:melting_point
|
1068 ° C
3000 ° C
|
|
gptkbp:members
|
lanthanides
|
|
gptkbp:mode
|
gptkb:beta_decay
|
|
gptkbp:parent
|
Nd-141
Sm-141
|
|
gptkbp:population
|
7.26 g/cm³
|
|
gptkbp:power_output
|
5.58 e V
|
|
gptkbp:price
|
high due to rarity
|
|
gptkbp:produced_by
|
from uranium fission
|
|
gptkbp:roll_rate
|
5/2
|
|
gptkbp:safety_features
|
radiation protection gear
|
|
gptkbp:side_effect
|
radioactive toxicity
|
|
gptkbp:social_structure
|
hexagonal
+3, +4
|
|
gptkbp:species
|
not naturally occurring
|
|
gptkbp:storage
|
shielded containers
|
|
gptkbp:symbol
|
Pm
|
|
gptkbp:type_of
|
7440-31-5
|
|
gptkbp:uses
|
nuclear batteries
|
|
gptkbp:was_a_response_to
|
reacts with water and acids
|
|
gptkbp:year_created
|
1945
|